Md. mall gunman was avid skater, no criminal past

The home of Darion Marcus Aguilar of College Park, Md., is seen Sunday, Jan. 26, 2014. Police say Aguilar carried out Saturdays attack with a shotgun at a skateboard shop at the Mall of Columbia before killing himself.Howard County Police Chief William McMahon said investigators are trying to determine whether Aguilar knew either of the victims and whether he had a criminal record. They offered no motive for the shooting. (AP Photo/Ben Nuckles)

COLUMBIA, Md. (AP) – Police say they have found the Maryland mall gunman’s journal and it expresses some general unhappiness, but they say they still are not sure of a motive in the shooting.

Howard County Police Chief William McMahon said Sunday night that they had taken the journal from Darion Marcus Aguliar’s house, but he did not give any specifics about what it contained.

He says they are still interviewing friends and family of the gunman and the victims, but authorities are not sure yet whether they knew each other.

Aguliar killed two people at the Mall in Columbia on Saturday before turning the gun on himself. Police say he was armed with a shotgun, plenty of ammunition and a backpack filled with crude homemade explosives.